Radio base station apparatus and radio communication method
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorKazuyuki Miya
Life of this patent
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Abstract
A path search processing section 110 of a searcher 108 performs despreading processing for a signal that has undergone AAA reception by an MF 110a. A power addition circuit 110c adds power of a signal in which coherent addition of a despread signal has been performed, and outputs the result to a delay profile circuit 110d and also to threshold value decision circuit 111. Outputs from respective threshold value decision circuits 111 are output to a combining circuit 112. A power combination value combined by the combining circuit 112 is output to a delay profile circuit 113, and a delay profile is created based on this power combination value. A finger assignment circuit 114 finds despreading timing for AAA reception weight control from the delay profile.
Claims7
A radio base station apparatus comprising:
- reception weight setting means for setting a plurality of reception weights;
- adaptive array antenna receiving means for performing adaptive array antenna reception of signals from said plurality of communication terminals in directional patterns formed with said reception weights;
- and
- path search means for combining power addition values for each directional pattern received by an adaptive array antenna and creating a delay profile, performing finger assignment using this delay profile, and outputting despreading timing used in weight control for adaptive array antenna reception.
A radio base station apparatus comprising:
- reception weight calculating means for grouping a plurality of communication terminals and finding a reception weight for each group;
- adaptive array antenna receiving means for performing adaptive array antenna reception of signals from said plurality of communication terminals in directional patterns formed with said reception weights;
- and
- path search means for combining power addition values for each directional pattern received by an adaptive array antenna and creating a delay profile, performing finger assignment using this delay profile, and outputting despreading timing used in weight control for adaptive array antenna reception.
A radio base station apparatus comprising:
- a plurality of diversity antennas;
- reception weight calculating means for grouping a plurality of communication terminals and finding a reception weight for each group;
- adaptive array antenna receiving means for performing adaptive array antenna reception respectively with said diversity antennas of signals from said plurality of communication terminals in directional patterns formed with said reception weights;
- and
- path search means for combining power addition values for each directional pattern received by an adaptive array antenna and creating a delay profile, performing finger assignment using this delay profile, and outputting despreading timing used in weight control for adaptive array antenna reception.
A communication terminal apparatus that performs radio communication with a radio base station apparatus, said radio base station apparatus comprising:
- reception weight setting means for setting a plurality of reception weights;
- adaptive array antenna receiving means for performing adaptive array antenna reception of signals from said plurality of communication terminals in directional patterns formed with said reception weights;
- and
- path search means for combining power addition values for each directional pattern received by an adaptive array antenna and creating a delay profile, performing finger assignment using this delay profile, and outputting despreading timing used in weight control for adaptive array antenna reception.
A radio communication method comprising:
- a reception weight calculating step of grouping a plurality of communication terminals and finding a reception weight for each group;
- an adaptive array antenna receiving step of performing adaptive array antenna reception of signals from said plurality of communication terminals in directional patterns formed with said reception weights;
- and
- a path search step of combining power addition values for each directional pattern received by an adaptive array antenna and Creating a delay profile, performing finger assignment u sing this delay profile, and outputting despreading timing used in weight control for adaptive array antenna reception. 8. A radio communication method comprising:
- a reception weight calculating step of grouping a plurality of communication terminals and finding a reception weight for each group;
- an adartive array antenna receiving step of performing a aptive array antenna reception of signals from said plurality of communication terminals in directional l atterns formed with said reception weights;
- a path search step of combining, after completion of thresholdivalue decisions, power addition values for each group xeceived by an adaptive array antenna and creating a d lay profile, performing finger assignment using this delay profile, and outputting despreading timing used in weight control for adaptive array antenna reception;
- and
- a finger assigning step of performing finger assignment using a signal received by an adaptive array antenna.
Dependencies are inferred from the claim text.